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[media] rtl28xxu: switch SDR module to platform driver

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RTL2832 SDR module implements kernel platform driver. Change old
binding to that one.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Antti Palosaari 2014-12-16 10:50:54 -03:00 committed by Mauro Carvalho Chehab
parent 63bdab5d31
commit a2f7f220df
2 changed files with 50 additions and 79 deletions
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126
drivers/media/usb/dvb-usb-v2/rtl28xxu.c
View File

@ -22,25 +22,6 @@
#include "rtl28xxu.h"
#ifdef CONFIG_MEDIA_ATTACH
#define dvb_attach_sdr(FUNCTION, ARGS...) ({ \
void *__r = NULL; \
typeof(&FUNCTION) __a = symbol_request(FUNCTION); \
if (__a) { \
__r = (void *) __a(ARGS); \
if (__r == NULL) \
symbol_put(FUNCTION); \
} \
__r; \
})
#else
#define dvb_attach_sdr(FUNCTION, ARGS...) ({ \
FUNCTION(ARGS); \
})
#endif
static int rtl28xxu_disable_rc;
module_param_named(disable_rc, rtl28xxu_disable_rc, int, 0644);
MODULE_PARM_DESC(disable_rc, "disable RTL2832U remote controller");
@ -662,37 +643,6 @@ static const struct rtl2832_platform_data rtl2832_r820t_platform_data = {
.tuner = TUNER_RTL2832_R820T,
};
/* TODO: these are redundant information for rtl2832_sdr driver */
static const struct rtl2832_config rtl28xxu_rtl2832_fc0012_config = {
.i2c_addr = 0x10, /* 0x20 */
.xtal = 28800000,
.tuner = TUNER_RTL2832_FC0012
};
static const struct rtl2832_config rtl28xxu_rtl2832_fc0013_config = {
.i2c_addr = 0x10, /* 0x20 */
.xtal = 28800000,
.tuner = TUNER_RTL2832_FC0013
};
static const struct rtl2832_config rtl28xxu_rtl2832_tua9001_config = {
.i2c_addr = 0x10, /* 0x20 */
.xtal = 28800000,
.tuner = TUNER_RTL2832_TUA9001,
};
static const struct rtl2832_config rtl28xxu_rtl2832_e4000_config = {
.i2c_addr = 0x10, /* 0x20 */
.xtal = 28800000,
.tuner = TUNER_RTL2832_E4000,
};
static const struct rtl2832_config rtl28xxu_rtl2832_r820t_config = {
.i2c_addr = 0x10,
.xtal = 28800000,
.tuner = TUNER_RTL2832_R820T,
};
static int rtl2832u_fc0012_tuner_callback(struct dvb_usb_device *d,
int cmd, int arg)
{
@ -1062,10 +1012,10 @@ static int rtl2832u_tuner_attach(struct dvb_usb_adapter *adap)
int ret;
struct dvb_usb_device *d = adap_to_d(adap);
struct rtl28xxu_priv *priv = d_to_priv(d);
struct rtl2832_platform_data *pdata = &priv->rtl2832_platform_data;
struct dvb_frontend *fe = NULL;
struct i2c_board_info info;
struct i2c_client *client;
struct v4l2_subdev *subdev = NULL;
dev_dbg(&d->udev->dev, "%s:\n", __func__);
@ -1080,10 +1030,6 @@ static int rtl2832u_tuner_attach(struct dvb_usb_adapter *adap)
* that to the tuner driver */
adap->fe[0]->ops.read_signal_strength =
adap->fe[0]->ops.tuner_ops.get_rf_strength;
/* attach SDR */
dvb_attach_sdr(rtl2832_sdr_attach, adap->fe[0], &d->i2c_adap,
&rtl28xxu_rtl2832_fc0012_config, NULL);
break;
case TUNER_RTL2832_FC0013:
fe = dvb_attach(fc0013_attach, adap->fe[0],
@ -1092,16 +1038,8 @@ static int rtl2832u_tuner_attach(struct dvb_usb_adapter *adap)
/* fc0013 also supports signal strength reading */
adap->fe[0]->ops.read_signal_strength =
adap->fe[0]->ops.tuner_ops.get_rf_strength;
/* attach SDR */
dvb_attach_sdr(rtl2832_sdr_attach, adap->fe[0], &d->i2c_adap,
&rtl28xxu_rtl2832_fc0013_config, NULL);
break;
case TUNER_RTL2832_E4000: {
struct v4l2_subdev *sd;
struct i2c_adapter *i2c_adap_internal =
pdata->get_private_i2c_adapter(priv->i2c_client_demod);
struct e4000_config e4000_config = {
.fe = adap->fe[0],
.clock = 28800000,
@ -1122,13 +1060,7 @@ static int rtl2832u_tuner_attach(struct dvb_usb_adapter *adap)
}
priv->i2c_client_tuner = client;
sd = i2c_get_clientdata(client);
i2c_set_adapdata(i2c_adap_internal, d);
/* attach SDR */
dvb_attach_sdr(rtl2832_sdr_attach, adap->fe[0],
i2c_adap_internal,
&rtl28xxu_rtl2832_e4000_config, sd);
subdev = i2c_get_clientdata(client);
}
break;
case TUNER_RTL2832_FC2580:
@ -1158,10 +1090,6 @@ static int rtl2832u_tuner_attach(struct dvb_usb_adapter *adap)
/* Use tuner to get the signal strength */
adap->fe[0]->ops.read_signal_strength =
adap->fe[0]->ops.tuner_ops.get_rf_strength;
/* attach SDR */
dvb_attach_sdr(rtl2832_sdr_attach, adap->fe[0], &d->i2c_adap,
&rtl28xxu_rtl2832_r820t_config, NULL);
break;
case TUNER_RTL2832_R828D:
fe = dvb_attach(r820t_attach, adap->fe[0],
@ -1177,21 +1105,53 @@ static int rtl2832u_tuner_attach(struct dvb_usb_adapter *adap)
adap->fe[1]->ops.read_signal_strength =
adap->fe[1]->ops.tuner_ops.get_rf_strength;
}
/* attach SDR */
dvb_attach_sdr(rtl2832_sdr_attach, adap->fe[0], &d->i2c_adap,
&rtl28xxu_rtl2832_r820t_config, NULL);
break;
default:
dev_err(&d->udev->dev, "%s: unknown tuner=%d\n", KBUILD_MODNAME,
priv->tuner);
}
if (fe == NULL && priv->i2c_client_tuner == NULL) {
ret = -ENODEV;
goto err;
}
/* register SDR */
switch (priv->tuner) {
struct platform_device *pdev;
struct rtl2832_sdr_platform_data pdata = {};
case TUNER_RTL2832_FC0012:
case TUNER_RTL2832_FC0013:
case TUNER_RTL2832_E4000:
case TUNER_RTL2832_R820T:
case TUNER_RTL2832_R828D:
pdata.clk = priv->rtl2832_platform_data.clk;
pdata.tuner = priv->tuner;
pdata.i2c_client = priv->i2c_client_demod;
pdata.bulk_read = priv->rtl2832_platform_data.bulk_read;
pdata.bulk_write = priv->rtl2832_platform_data.bulk_write;
pdata.update_bits = priv->rtl2832_platform_data.update_bits;
pdata.dvb_frontend = adap->fe[0];
pdata.dvb_usb_device = d;
pdata.v4l2_subdev = subdev;
request_module("%s", "rtl2832_sdr");
pdev = platform_device_register_data(&priv->i2c_client_demod->dev,
"rtl2832_sdr",
PLATFORM_DEVID_AUTO,
&pdata, sizeof(pdata));
if (pdev == NULL || pdev->dev.driver == NULL)
break;
if (!try_module_get(pdev->dev.driver->owner)) {
platform_device_unregister(pdev);
break;
}
priv->platform_device_sdr = pdev;
break;
default:
dev_dbg(&d->udev->dev, "no SDR for tuner=%d\n", priv->tuner);
}
return 0;
err:
dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
@ -1203,9 +1163,17 @@ static int rtl2832u_tuner_detach(struct dvb_usb_adapter *adap)
struct dvb_usb_device *d = adap_to_d(adap);
struct rtl28xxu_priv *priv = d_to_priv(d);
struct i2c_client *client;
struct platform_device *pdev;
dev_dbg(&d->udev->dev, "%s:\n", __func__);
/* remove platform SDR */
pdev = priv->platform_device_sdr;
if (pdev) {
module_put(pdev->dev.driver->owner);
platform_device_unregister(pdev);
}
/* remove I2C tuner */
client = priv->i2c_client_tuner;
if (client) {

3
drivers/media/usb/dvb-usb-v2/rtl28xxu.h
View File

@ -22,6 +22,8 @@
#ifndef RTL28XXU_H
#define RTL28XXU_H
#include <linux/platform_device.h>
#include "dvb_usb.h"
#include "rtl2830.h"
@ -76,6 +78,7 @@ struct rtl28xxu_priv {
struct i2c_client *i2c_client_demod;
struct i2c_client *i2c_client_tuner;
struct i2c_client *i2c_client_slave_demod;
struct platform_device *platform_device_sdr;
#define SLAVE_DEMOD_NONE 0
#define SLAVE_DEMOD_MN88472 1
#define SLAVE_DEMOD_MN88473 2